One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,6,9,7,10,4,5)(3,11,12,15,13,16,14,8)(17,18,23,28)(19,29)(20,21,38,41)(22,26,30,27)(24,34)(25,36,40,37)(31,42)(32,48)(33,44)(35,45)(39,43)(46,47)(1,3,7,13)(2,8,10,15)(4,12,6,14)(5,11,9,16)(17,19,30,33,23,35,22,34)(18,24,27,29,28,44,26,45)(20,31,37,47,38,48,36,43)(21,39,25,42,41,46,40,32)(1,4,7,6)(2,5,10,9)(3,12,13,14)(8,11,15,16)(17,20,23,38)(18,25,28,40)(19,31,35,48)(21,27,41,26)(22,36,30,37)(24,42,44,32)(29,46,45,39)(33,47,34,43)(1,5,4,10,7,9,6,2)(3,8,14,16,13,15,12,11)(17,21,30,25,23,41,22,40)(18,20,27,37,28,38,26,36)(19,32,34,46,35,42,33,39)(24,43,45,48,44,47,29,31)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.